Vulnerability Details : CVE-2021-32862
The GitHub Security Lab discovered sixteen ways to exploit a cross-site scripting vulnerability in nbconvert. When using nbconvert to generate an HTML version of a user-controllable notebook, it is possible to inject arbitrary HTML which may lead to cross-site scripting (XSS) vulnerabilities if these HTML notebooks are served by a web server (eg: nbviewer).
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-32862
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:jupyter:nbconvert:*:*:*:*:*:python:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-32862
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 23 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-32862
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.6
|
5.9
|
GitHub, Inc. |
CWE ids for CVE-2021-32862
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2021-32862
-
https://lists.debian.org/debian-lts-announce/2023/06/msg00003.html
[SECURITY] [DLA 3442-1] nbconvert security updateMailing List;Third Party Advisory
-
https://github.com/jupyter/nbconvert/security/advisories/GHSA-9jmq-rx5f-8jwq
Multiple sanitization/validation issues · Advisory · jupyter/nbconvert · GitHubExploit;Third Party Advisory
-
https://github.com/jupyter/nbviewer/security/advisories/GHSA-h274-fcvj-h2wm
Page not found · GitHub · GitHubBroken Link
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